The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 19, 2016

Filed:

Apr. 24, 2012
Applicants:

Yoshinori Honda, Hamamatsu, JP;

Fumitsugu Fukuyo, Hamamatsu, JP;

Yuji Kasamatsu, Hamamatsu, JP;

Takashi Suzuki, Hamamatsu, JP;

Takeaki Hattori, Hamamatsu, JP;

Koji Kawai, Hamamatsu, JP;

Shucheng Chu, Hamamatsu, JP;

Hiroyuki Taketomi, Hamamatsu, JP;

Inventors:

Yoshinori Honda, Hamamatsu, JP;

Fumitsugu Fukuyo, Hamamatsu, JP;

Yuji Kasamatsu, Hamamatsu, JP;

Takashi Suzuki, Hamamatsu, JP;

Takeaki Hattori, Hamamatsu, JP;

Koji Kawai, Hamamatsu, JP;

Shucheng Chu, Hamamatsu, JP;

Hiroyuki Taketomi, Hamamatsu, JP;

Assignee:

HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01); G01N 21/64 (2006.01); H01J 63/02 (2006.01); H01J 29/20 (2006.01); H01J 63/06 (2006.01); C09K 11/77 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
H01J 63/02 (2013.01); C09K 11/7774 (2013.01); H01J 29/20 (2013.01); H01J 63/06 (2013.01); G01J 1/429 (2013.01); G01N 21/64 (2013.01); H01J 63/04 (2013.01);
Abstract

An ultraviolet light generating targetincludes a substratemade of sapphire, quartz, or rock crystal; and a light-emitting layerthat is provided on the substrateand that generates ultraviolet light upon receiving an electron beam. The light-emitting layerincludes powdered or granular Pr:LuAG crystals. By using such a light-emitting layeras the target, the ultraviolet light generating efficiency can be increased more remarkably than when a Pr:LuAG single crystal film is used.


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